Sash hanging and operating mechanism.



J. KAHN.

SASH HANGING AND OPERATING MECHANISM.

APPLICATION FILED NOV. 18, 1912 1,079,497, Patented Nov. 25, 1913.

wuwemo am y AoW/ JULIUS KAHN, or nriraorr, MICHIGAN.

SASH HANGING AND OPERATING MECHANISM.

Specification of Letters Patent.

Patented Nov. 25, 1913.

Application filed November 18, 1512. Serial No. 731,927.

of the window will move in unison and balance each other during such movement to aid the operation and obviate the necessity for fastening means to hold the sashes in the position to which they are adjusted.

A further object is to provide a construction which is such that when in open position, each sash forms a brace for the other to hold each against accidental closing, and to provide certain other new and useful features in the construction and arrangement of parts, the invention consisting in the matters hereinafter more fully set forth and particularly pointed out in the appended claims, reference being had to the accompanying drawing in which- Figure 1 is a vertical section through a window embodying the invention; Fig. 2 an elevation of the inside of a portion of the window; Fig. 3 is a sectional detail of one of the sliding pivots; Fig. 4 is an elevation similar to Fig. 2, drawn to a smaller scale and showing the window complete; and Fig. 5 is a sectional detail of one of the locking devices.

For convenience of illustration, a metal construction of window frame and sash is shown, but it will be understood that the construction and arrangement of sash operating means embodying the invention, may be applied as well to other constructions formed of any suitable material.

As shown in the drawing, a window frame A is formed with a groove 1 in each vertical side to receive studs 2 carried by and projecting laterally from an upper sash B at its upper end and also to form a guideway for similar studs extendinghorizontally from a lower sash C at the lower end thereof. The upper and lower sash frames are connected at their adjacent ends by a hinge 3 secured to the inner side of the sash to permit said sashes to swing outwardly at their adjacent ends, the same turning upon their studs 2 which will travel toward each other along the grooves in the casing during sucllli outwardly swinging movement of the sas To form a pivotal support for each sash and guide the same in its outward folding movement, links 5 are pivotally attached at their outer ends to the inner side of the upper sash B near each edge thereof intermediate its ends by brackets 4, and these links are pivotally attached to the casing at their inner ends by suitable brackets 6 which are bolted or otherwise secured, to the inner side of the window casing. The lower sash C is similarly supported and guided by links 7 attached in a like manner at their outer ends to said sash intermediate its ends and pivotally secured at their inner ends to the casing in a like manner by the brackets 6. Each of these brackets 6 is formed with a trunnion 8 projecting inward from the casing side to engage openings in the ends of the links 5 and 7, and each trunnion is s'crewthreaded at its outer end to receive a handled nut 9 adapted to be turned to firmly clamp the links between it and a shoulder on the bracket and thus frictionally hold the links against turning upon the trunnion. These brackets form fixed pivots for the links 5 and 7 and are preferably positioned with their trunnions in the horizontal plane of the meeting endsof the two sash frames, and the two pairs of links are of the same length so that when the frames are moved, their pivotal point of connection or hinge is caused to move outwardly in the horizontal plane of said trunnions, the studs on the upper sash sliding downward in the groove in casing and the studs on the lower sash moving upward along said groove to guide the inner ends of the sash frames during their folding movement. The lower sash is thus caused by its hinge connection to the up er sash and by the swin ing links, to swing outwardly and u war ly as the upper sash swings outward y and downwardly, and thus the movement of one sash is opposed to the movement of the other, and a alanced construction is secured. In this construction and arrangement, counter weights or other means for assisting the opening or closing of the window sash are unnecessary as the weight of one balances that of the other during their movement and they may therefore be easily adjusted. Further, the arrangement is such that when in open position, one sash frame forms a brace for the other as they project outwardly from the window casing in angular relation to each other and thus wind pressure is resisted and the liability of the sashes being blown into closed position is obviated.

It will be understood that the lock nuts 9 are for the purpose of preventing the wlndow from being accidentally closed by v1- bration of the parts but that these locks are not necessary to hold the sash in open position as each sash balances the other and will, under ordinary conditions, rema1n 1n the position to which they are ad usted.

Obviously this construction of sash operating means may be applied to casement windows, the sash of such windows being connected to turn upon a vertical axis and move outwardly along a vertical plane and to swing in a horizontal plane toward each other and toward the vertical center of the window frame. Other changes in the construction and arrangement of parts may be made without departing from the spirit of my invention and I do not limit myself to the particular form or arrangement shown.

Having thus fully described my mventlon what I claim is 1. The comblnation of window sasheshaving their meeting rails hinged together, means for pivotally supporting and gulding the opposite ends of said sashes, and supporting means having a fixed pivotal support and pivotally attached to the sashes intermediate their ends.

2. The combination of a window frame, sashes in said frame pivotally connected at their adjacent'ends, means for pivotally attaching the sashes at their opposlte ends o said frame and permitting a free sliding movement thereon, and means pivotally attached to the frame intermediate the ends thereof and pivotally connected to each sash intermediate the ends of said sash.

3. The combination of a window frame having guides, sash in said frame pivotally connected at their adjacent ends and free to slide along said guides at their opposite ends, and members pivotally attached at one end to the sashes and having a common fixed pivotal attachment to the frame at their opposite ends.

4. The combination of a window frame, sashes in said frame, the sashes arranged in superposed relation and pivotally connected at their adjacent ends, means for pivotall connecting the upper end of the upper sash and the lower end of the lower sash to said frame and guiding the same to slide vertically thereon, and members having a fixed pivotal attachment to the frame midway between the upper and lower ends thereof and pivotally connected to said sashes between their point of attachment to the frame and their pivotally connected ends.

5. The combination of a window frame having a guide slot, sashes in said frame pivotally connected at their adjacent ends, means on the opposite ends of said sashes to engage the guide slot and turn therein, links pivotally attached to the sashes at one end and having a common fixed pivotal attachment to the frame at their opposite ends located in the plane of the pivotally connected ends of the sashes.

6. The combination of a window frame having vertical guide slots in its sides, sashes in said frame hinge connected at their adjacent ends, means on the opposite ends .Of said sashes engaging vertical slots to slide and turn therein, links pivotally attached at one end to the sashes intermediate the ends thereof, and means secured to the frame and forming a common fixed pivot for the opposite ends of said links.

7. The combination of a window frame having a vert 1 slot in each side, window sashes in said frame, a hinge connecting the adjacent ends of said sashes, studs on the upper sash at its upper end to engage said slots, studs on the lower end of the lower sash to engage said slots, links pivotally attached at their upper ends to each sash intermediate its ends, and brackets secured to the window frame and forming fixed pivots for the inner ends of said links, and positioned in the horizontal plane of the meeting ends of the sashes.

8. The combination of a window frame having vertical slots in its sides, sashes in said frame. a hinge pivotally connecting the sashes at their adjacent ends, studs on the opposite ends of said sashes engaging the grooves in the frame to slide and turn therein, links pivotally attached at their outer ends to the sash intermediate the ends of the sashes and provided with openings at their inner ends, a bracket secured to the frame having a screwthreaded trunnion to engage the openings in the ends of the links and pivotally connect the links to the frame in the horizontal plane of the meetin ends of the sashes, and a nut on the screwt readed trunnion to frictionallv engage the links.

In testimony whereof I aflix my signature in presence of two witnesses.

JULIUS KAHN.

Witnesses:

ANNA M. Donn, GENEVIEVE E. MCGRANN. 

